*{
	font-family: "微软雅黑";
	line-height: 30px;
	font-size: 20px;
}
body{
	background: #D3DCE6;
}
.web{
	width:75%;
	padding-top: 30px;
	margin:0 auto;
	padding-bottom: 50px;
}
h1{
	font-size: 30px;
	text-align: center;
}
h2{
	font-size: 25px;
	margin: 15px 0 15px 0;
}
h4{
	font-size: 20px;
	margin: 15px 0 15px 0;
}
hr{
	margin: 15px auto 25px auto;
}
P{
	text-indent: 2em;
	line-height: 28px;
}
summary{
	text-indent: 2em;
	outline: none;
	border: none;
}
ul,ol{
	margin-left: 80px;
}
li{
	margin-top: 10px;
}
